{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "additionalProperties": false,
    "definitions": {
        "absolute_path": {
            "description": "A path only. Query string and/or fragment are not allowed.",
            "pattern": "^/(([a-zA-Z0-9._~!$&'()*+,;=:@-]|%[0-9a-fA-F]{2})+(/([a-zA-Z0-9._~!$&'()*+,;=:@-]|%[0-9a-fA-F]{2})*)*)?$",
            "type": "string"
        },
        "analytics_identifier": {
            "anyOf": [
                {
                    "type": "string"
                },
                {
                    "type": "null"
                }
            ],
            "description": "A short identifier we send to Google Analytics for multi-valued fields. This means we avoid the truncated values we would get if we sent the path or slug of eg organisations."
        },
        "change_history": {
            "items": {
                "additionalProperties": false,
                "properties": {
                    "note": {
                        "description": "A summary of the change",
                        "type": "string"
                    },
                    "public_timestamp": {
                        "_format": "date-time",
                        "type": "string"
                    }
                },
                "required": [
                    "public_timestamp",
                    "note"
                ],
                "type": "object"
            },
            "type": "array"
        },
        "description": {
            "type": "string"
        },
        "description_optional": {
            "anyOf": [
                {
                    "$ref": "#/definitions/description"
                },
                {
                    "type": "null"
                }
            ]
        },
        "details": {
            "additionalProperties": false,
            "properties": {
                "change_history": {
                    "$ref": "#/definitions/change_history"
                },
                "closed_value": {
                    "description": "Value that determines the closed state (the key field is in the past) of a topical facet."
                },
                "combine_mode": {
                    "default": "and",
                    "description": "Specifies how to combine with other facets",
                    "enum": [
                        "and",
                        "or"
                    ],
                    "type": "string"
                },
                "display_as_result_metadata": {
                    "description": "Include this in search result metadata. Can be set for non-filterable facets.",
                    "type": "boolean"
                },
                "filter_key": {
                    "description": "The exact rummager field name for this facet. Allows 'key' to be aliased to a rummager filter field",
                    "type": "string"
                },
                "filter_value": {
                    "description": "A preset filter value that is applied when a checkbox is selected",
                    "type": "string"
                },
                "filterable": {
                    "description": "This must be true to show the facet to users.",
                    "type": "boolean"
                },
                "key": {
                    "description": "The rummager field name used for this facet.",
                    "type": "string"
                },
                "keys": {
                    "description": "Field names used for the taxon drop down.",
                    "items": {
                        "type": "string"
                    },
                    "type": "array"
                },
                "name": {
                    "description": "Label for the facet.",
                    "type": "string"
                },
                "open_value": {
                    "description": "Value that determines the open state (the key field is in the future) of a topical facet."
                },
                "preposition": {
                    "description": "Text used to augment the description of the search when the facet is used.",
                    "type": "string"
                },
                "short_name": {
                    "type": "string"
                },
                "type": {
                    "description": "Defines the UI component and how the facet is queried from the search API",
                    "enum": [
                        "autocomplete",
                        "checkbox",
                        "content_id",
                        "date",
                        "hidden",
                        "taxon",
                        "text",
                        "topical"
                    ],
                    "type": "string"
                }
            },
            "required": [
                "filterable",
                "key",
                "name",
                "type"
            ],
            "type": "object"
        },
        "first_published_at": {
            "_format": "date-time",
            "description": "The date the content was first published.  Automatically determined by the publishing-api, unless overridden by the publishing application.",
            "type": "string"
        },
        "frontend_links": {
            "items": {
                "additionalProperties": true,
                "properties": {
                    "analytics_identifier": {
                        "$ref": "#/definitions/analytics_identifier"
                    },
                    "api_path": {
                        "$ref": "#/definitions/absolute_path"
                    },
                    "api_url": {
                        "_format": "uri",
                        "description": "DEPRECATED: api_path should be used instead of api_url. This is due to values of api_url being tied to an environment which can cause problems when data is synced between environments. In time this field will be removed by the Publishing Platform team.",
                        "type": "string"
                    },
                    "base_path": {
                        "$ref": "#/definitions/absolute_path"
                    },
                    "content_id": {
                        "$ref": "#/definitions/guid"
                    },
                    "document_type": {
                        "type": "string"
                    },
                    "links": {
                        "patternProperties": {
                            "^[a-z_]+$": {
                                "$ref": "#/definitions/frontend_links"
                            }
                        },
                        "type": "object"
                    },
                    "locale": {
                        "$ref": "#/definitions/locale"
                    },
                    "public_updated_at": {
                        "oneOf": [
                            {
                                "$ref": "#/definitions/public_updated_at"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "schema_name": {
                        "type": "string"
                    },
                    "title": {
                        "type": "string"
                    },
                    "web_url": {
                        "_format": "uri",
                        "description": "DEPRECATED: base_path should be used instead of web_url. This is due to values of web_url being tied to an environment which can cause problems when data is synced between environments. In time this field will be removed by the Publishing Platform team.",
                        "type": "string"
                    }
                },
                "required": [
                    "content_id",
                    "locale",
                    "title"
                ],
                "type": "object"
            },
            "type": "array"
        },
        "frontend_links_with_base_path": {
            "items": {
                "additionalProperties": true,
                "properties": {
                    "analytics_identifier": {
                        "$ref": "#/definitions/analytics_identifier"
                    },
                    "api_path": {
                        "$ref": "#/definitions/absolute_path"
                    },
                    "api_url": {
                        "_format": "uri",
                        "description": "DEPRECATED: api_path should be used instead of api_url. This is due to values of api_url being tied to an environment which can cause problems when data is synced between environments. In time this field will be removed by the Publishing Platform team.",
                        "type": "string"
                    },
                    "base_path": {
                        "$ref": "#/definitions/absolute_path"
                    },
                    "content_id": {
                        "$ref": "#/definitions/guid"
                    },
                    "document_type": {
                        "type": "string"
                    },
                    "links": {
                        "patternProperties": {
                            "^[a-z_]+$": {
                                "$ref": "#/definitions/frontend_links_with_base_path"
                            }
                        },
                        "type": "object"
                    },
                    "locale": {
                        "$ref": "#/definitions/locale"
                    },
                    "public_updated_at": {
                        "oneOf": [
                            {
                                "$ref": "#/definitions/public_updated_at"
                            },
                            {
                                "type": "null"
                            }
                        ]
                    },
                    "schema_name": {
                        "type": "string"
                    },
                    "title": {
                        "type": "string"
                    },
                    "web_url": {
                        "_format": "uri",
                        "description": "DEPRECATED: base_path should be used instead of web_url. This is due to values of web_url being tied to an environment which can cause problems when data is synced between environments. In time this field will be removed by the Publishing Platform team.",
                        "type": "string"
                    }
                },
                "required": [
                    "base_path",
                    "content_id",
                    "locale",
                    "title"
                ],
                "type": "object"
            },
            "type": "array"
        },
        "guid": {
            "pattern": "^[a-f0-9]{8}-[a-f0-9]{4}-[1-5][a-f0-9]{3}-[89ab][a-f0-9]{3}-[a-f0-9]{12}$",
            "type": "string"
        },
        "locale": {
            "enum": [
                "ar",
                "az",
                "be",
                "bg",
                "bn",
                "cs",
                "cy",
                "da",
                "de",
                "dr",
                "el",
                "en",
                "es",
                "es-419",
                "et",
                "fa",
                "fi",
                "fr",
                "gd",
                "he",
                "hi",
                "hr",
                "hu",
                "hy",
                "id",
                "is",
                "it",
                "ja",
                "ka",
                "kk",
                "ko",
                "lt",
                "lv",
                "ms",
                "mt",
                "nl",
                "no",
                "pl",
                "ps",
                "pt",
                "ro",
                "ru",
                "si",
                "sk",
                "sl",
                "so",
                "sq",
                "sr",
                "sv",
                "sw",
                "ta",
                "th",
                "tk",
                "tr",
                "uk",
                "ur",
                "uz",
                "vi",
                "zh",
                "zh-hk",
                "zh-tw"
            ],
            "type": "string"
        },
        "public_updated_at": {
            "_format": "date-time",
            "description": "When the content was last significantly changed (a major update). Shown to users.  Automatically determined by the publishing-api, unless overridden by the publishing application.",
            "type": "string"
        },
        "publishing_app_name": {
            "description": "The application that published this item.",
            "enum": [
                "calculators",
                "calendars",
                "collections-publisher",
                "contacts",
                "content-publisher",
                "content-tagger",
                "email-alert-frontend",
                "external-link-tracker",
                "feedback",
                "frontend",
                "government-frontend",
                "hmrc-manuals-api",
                "info-frontend",
                "licencefinder",
                "local-links-manager",
                "manuals-frontend",
                "manuals-publisher",
                "maslow",
                "performanceplatform-big-screen-view",
                "publisher",
                "rummager",
                "search-admin",
                "search-api",
                "service-manual-publisher",
                "share-sale-publisher",
                "short-url-manager",
                "smartanswers",
                "special-route-publisher",
                "specialist-publisher",
                "static",
                "tariff",
                "travel-advice-publisher",
                "whitehall"
            ],
            "type": "string"
        },
        "publishing_request_id": {
            "description": "A unique identifier used to track publishing requests to rendered content",
            "oneOf": [
                {
                    "type": "string"
                },
                {
                    "type": "null"
                }
            ]
        },
        "publishing_scheduled_at": {
            "_format": "date-time",
            "description": "When this content was last scheduled for publishing. Determined by the publishing intent sent by the publishing API.",
            "type": "string"
        },
        "rendering_app": {
            "description": "The application that renders this item.",
            "enum": [
                "calculators",
                "calendars",
                "collections",
                "content-store",
                "email-alert-frontend",
                "email-campaign-frontend",
                "feedback",
                "finder-frontend",
                "frontend",
                "government-frontend",
                "info-frontend",
                "licencefinder",
                "manuals-frontend",
                "performanceplatform-big-screen-view",
                "rummager",
                "search-api",
                "service-manual-frontend",
                "smartanswers",
                "spotlight",
                "static",
                "tariff",
                "whitehall-admin",
                "whitehall-frontend"
            ],
            "type": "string"
        },
        "rendering_app_optional": {
            "anyOf": [
                {
                    "$ref": "#/definitions/rendering_app"
                },
                {
                    "type": "null"
                }
            ]
        },
        "scheduled_publishing_delay_seconds": {
            "description": "The delay between the most recent scheduled and actual publishing times. Determined by the content store based on the publishing intent.",
            "type": "integer"
        },
        "title": {
            "type": "string"
        },
        "withdrawn_notice": {
            "additionalProperties": false,
            "properties": {
                "explanation": {
                    "type": "string"
                },
                "withdrawn_at": {
                    "format": "date-time"
                }
            },
            "type": "object"
        }
    },
    "properties": {
        "analytics_identifier": {
            "$ref": "#/definitions/analytics_identifier"
        },
        "base_path": {
            "$ref": "#/definitions/absolute_path"
        },
        "content_id": {
            "$ref": "#/definitions/guid"
        },
        "description": {
            "$ref": "#/definitions/description_optional"
        },
        "details": {
            "$ref": "#/definitions/details"
        },
        "document_type": {
            "enum": [
                "facet"
            ],
            "type": "string"
        },
        "first_published_at": {
            "anyOf": [
                {
                    "$ref": "#/definitions/first_published_at"
                },
                {
                    "type": "null"
                }
            ]
        },
        "links": {
            "additionalProperties": false,
            "properties": {
                "available_translations": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "child_taxons": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "children": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "document_collections": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "facet_values": {
                    "$ref": "#/definitions/frontend_links",
                    "description": "Possible facet_values to show for non-dynamic select facets. All values are shown regardless of the search."
                },
                "level_one_taxons": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "ministers": {
                    "$ref": "#/definitions/frontend_links",
                    "description": "Link type automatically added by Publishing API"
                },
                "parent": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "The facet_group this facet belongs to.",
                    "maxItems": 1
                },
                "part_of_step_navs": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "policies": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "policy_areas": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "A largely deprecated tag currently only used to power email alerts."
                },
                "related_to_step_navs": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "role_appointments": {
                    "$ref": "#/definitions/frontend_links",
                    "description": "Link type automatically added by Publishing API"
                },
                "secondary_to_step_navs": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                },
                "topic_taxonomy_taxons": {
                    "$ref": "#/definitions/frontend_links_with_base_path",
                    "description": "Link type automatically added by Publishing API"
                }
            },
            "type": "object"
        },
        "locale": {
            "$ref": "#/definitions/locale"
        },
        "need_ids": {
            "items": {
                "type": "string"
            },
            "type": "array"
        },
        "phase": {
            "description": "The service design phase of this content item - https://www.gov.uk/service-manual/phases",
            "enum": [
                "alpha",
                "beta",
                "live"
            ],
            "type": "string"
        },
        "public_updated_at": {
            "anyOf": [
                {
                    "$ref": "#/definitions/public_updated_at"
                },
                {
                    "type": "null"
                }
            ]
        },
        "publishing_app": {
            "$ref": "#/definitions/publishing_app_name"
        },
        "publishing_request_id": {
            "$ref": "#/definitions/publishing_request_id"
        },
        "publishing_scheduled_at": {
            "anyOf": [
                {
                    "$ref": "#/definitions/publishing_scheduled_at"
                },
                {
                    "type": "null"
                }
            ]
        },
        "rendering_app": {
            "$ref": "#/definitions/rendering_app_optional"
        },
        "scheduled_publishing_delay_seconds": {
            "anyOf": [
                {
                    "$ref": "#/definitions/scheduled_publishing_delay_seconds"
                },
                {
                    "type": "null"
                }
            ]
        },
        "schema_name": {
            "enum": [
                "facet"
            ],
            "type": "string"
        },
        "title": {
            "$ref": "#/definitions/title"
        },
        "updated_at": {
            "_format": "date-time",
            "type": "string"
        },
        "withdrawn_notice": {
            "$ref": "#/definitions/withdrawn_notice"
        }
    },
    "required": [
        "base_path",
        "content_id",
        "description",
        "details",
        "document_type",
        "links",
        "locale",
        "public_updated_at",
        "schema_name",
        "title",
        "updated_at"
    ],
    "type": "object"
}